Railway truck structure



Sept. 2, 1941. E. G. BUSSE RAILWAY TRUCK STRUCTURE Filed March 2 0 19402 Sheets-Sheet 1 Bow: (5. 895 s:

Sept. 2, 1941. V E. BUSSE 2,254,513

RAILWAY TRUCK STRUCTURE Filed March 20,4940 2 Sheets-Sheet 2 FIG.6.

FIG.8. 40 FIGiO.

-77 Eowm'G. Busss:

' TIIORNEY,

Patented Sept. 2, 1941 RAILWAY TRUCK STRUCTURE Edwin G. Busse, Chicago,Ill., assignor to Chicago-Railway Equipment Company, Chicago, 111., acorporation of Illinois ApplicationMarch 20, 1940, Serial No. 325,034

Claims.

The invention relates to railway rolling stock and more particularly tothe mounting of brake beams upon the truck frame and the guiding of thebeams in their movement to and from the wheels.

The usual support for the brake beam on the truck frame comprises aswinging link suspended from a side frame bracket above the beam andpivotally engaging the brake head. This device will not in itself guidethe brake beam, 1. e., maintain its desired angular relation to thewheel tread, throughout the movement of the brake beam to and from thewheels. Usually other devices are provided for this purpose, the samebeing carried by the truck side frame or the spring plank or thebolster.

One of the objects of the invention is to simplify the support andguiding of the beams.

Another object of the invention is to facilitate the application andremoval of the beams to and from the truck for repair or replacement.

Another object of the invention is to support and guide the ends of anA. A. R. standard truss type brake beam on the side frames by bracketson the side frames adjacent to the ends of the brake beams withoutinterfering with the usual tensioning nuts projecting beyond the brakeheads.

The present invention utilizes some of the features more generallydisclosed and covered in copending applications filed by the sameinventor January 6, 1938 and bearing Serial Nos. 183,601 and 183,602,respectively. Since the filing of the present application thefirst-mentioned copending application has matured into Patent No.2,197,785, dated .April 23, 1940, and the second-mentioned copendingapplication has matured into Patent No. 2,226,551, dated December 31,1940.

The general objectives referred to above and other more specificobjects, as will appear hereinaf-ter, are attained by the structureillustrated in the accompanying drawings in which- Figure -1 is afragmentary top view and horizontal section through portions of the sideframes of a railway truck showing the adjacent portions of two truckwheels and the brake beam mounted on the side frames and applied to thewheels.

The section portions of the figure are taken ap-' proximately on thelines i-I of Figure 2.

Figure 2 is a vertical transverse section through the truck side framesand shows the brake beam and wheels in elevation.

Figure 3 is a side elevation of the major portion of the truck with apart of the side frame broken away to illustrate the structure moreclearly, and showing bracket parts sectioned as indicated by the line3-3 in Figure 2.

Figures 4, 5, 7, 9, 11, 13, 14, 15 and 16 are vertical transversesections through portions of truck side frames and illustrating partsassociated therewith, and each embodying a different form of the beamsupporting and guiding structure to which the present application isdirected.

10 Figures 6, 8, 10 and 12 are horizontal sections taken on thecorresponding section lines of Figures 5, '7, 9 and 11, respectively.

Figures 1, 2 and 3 show the moreimportant elements of a familiar type ofrailway four-wheel truck which includes wheels 1, side frames 2, springs3 carried directly on theside frames, or on a spring, plank (not shown)connecting the side frames, and a bolster 4 supported on springs 3 andprojecting through the window 5 between the top and bottom chords 6 and'l of the side frame and its upright columns 8. A truss type brake beamis provided for the wheels and includes a compression member 9, the endsof which enter and seat the brake heads ill, a strut II, a tension rodI! with its ends extending through the brake heads and threaded for theapplication of tensioning nuts 13 seated on the outer faces of the brakeheads.

The right hand side frame, shown in Figures 3o 1 and 2, is provided withflanges or guidesi 5 ad-' jacent to the ends of the brake beam andspaced vertically to receive between them cooperating flanges or ears l6provided on the outer facerof the adjacent brake head l0. Flanges l5 andi6 5 extend a substantial distance longitudinally of the truck and areinclined to the horizontal, as best shown in Figure 3, and support andguide the brake beam in its movement to and from the wheels.

Since it is necessary to apply the beams to the truck after the truckhas been assembled and to remove the beams from the truck at intervalswithout disassembling the other parts of the truck, and since theclearance between the wheels and the bolster and'bolster spring, and

spring plank if the same is present, will not permit rearwardmovement ofthe beam to clear supporting flanges such as are shown at 15, it isdesirable to provide a supporting member at the opposite side of thetruck which may be shifted into a functioning position underlying theend of the brake beam, or into a position in which it clears thebrake-beam end and permits it to be dropped, as indicated by the brokenlines B in Figure 2, whereupon the beam may be moved lengthwise awayfrom flanges I! and removed from the truck. Accordingly. the beamsupport ingmemberatthelefthandsideofthetruck is movably moimted upon theleft hand side frame.

In Figure 2 this member comprises a bracket ll opposite to the end ofthe beam with spaced ears it projecting through an opening It in theside wall of the frame and pivotally connected.

by rivets II to lugs 2| on the frame side wall. The axis of rivets IIextends longitudinally of the truck and, as shown, in substantiallyparallel to the top face of bracket i! which supports the beam. Anintermediate car 22 on bracket il projects upwardly and inwardly betweenlugs 23 on the side frame and is detachably secured thereto by a pin 24which may be removed readilybyaworkmanatthesideofthetruckto permitbracket ll to swing downwardly to the broken line position indicated at"a, whereupon the brake beam may be dropped and removed as previouslydescribed. Preferably guides l and bracket II have their rear endsflanged to limit the movement of the beam away from the wheels.

A depending lug L on bracket i1 seats a rubber pad R which is thrustagainst the side frame wall when pin 24 is inserted through ear 2! andlugs 23, and this pad cushions play between the bracket and frame.

While the adaptability of the above described structure for its intendedpurpom is evident, it will be noted that the brake beam may follow A. A.R. standards in every respect and, if desired, the brake head may beprovided with pockets for receiving the usual hanger suspended from theupper part of the side frame. Obviously both sides of the truck may beequipped with a. pivoted bracket for supporting the beam if it werepreferred not to have different side frame constructions, or if for anyother reason it was desired to provide a shiftable bracket at both endsof the beam.

Figure 4 illustrates a construction corresponding to that just describedexcept that the bracket 25 is below the level of its pivot 26, and theholding pin 21 through an ear below said level instead of through an earabove said level. with this arrangement the beam engaging portion of thebracket swings away from the beam more rapidly scribed.

than in the form previously deserted between wall 5i and the upright legof Figures5and6illustrateaform of-the in-' vention in which the beamsupporting bracket 34 swings about a vertically disposed pivot pin andis retained in its functioning position by removable bolt II which isreadily accessible from the outer side of the truck.

Figures 7 and 8 illustrate another form of the invention in which thebeam supporting bracket is not pivoted to the side frame but comprisesan L-shaped member having a horizontal leg 4| and a vertical leg 4|, thehorizontal leg sliding over the upwardly facing edge of the opening inthe side frame and the vertical leg being movable between two uprightlugs 43 on the side frame. A pin 44 may be inserted through lugs 43 toprevent the retraction of legs 44-. Preferably a spring 45 is compressedbetween leg 4i and the opposing face of the frame side wall 46,.and thisspring will hold the bracket against play in the frame. Upon removal ofpin 44, the

bracket may ,be withdrawn to the dotted line position indicated tofacilitate the dropp of the adjacent end of the brake beam.

Figures 9 and 10 illustrate a similarly shaped angular bracket 5., theupright leg of which is bolted directly to the side frame wall Ii bybolts 52 having nuts It which may be removed through the opening in theouter side of the truck to permit the bracket to be slid inwardly asindicated. Preferably. rubber elements 84 are inthe bracket to preventplay between the parts.

Figures 11' and 12 illustrate another form of the invention in which thebracket it rests upon an upwardly facing shelf it in the side frame ll.Detachable bolts It pass through an opposing flange 59 and bracket 55 toretain the latter in projected functioning position. Preferably shelf 58is slotted to receive a boss 84 on the bottom of bracket 55, and thisboss will limit the transverse movement of the bracket through theframe.

In Figure 13 the inwardly extending shelf on the frame is omitted andthe bracket ii has a return bend 62 on its inner end to overlie the lug63 on the side frame to contribute to the stable support of the bracket.Detachable bolt 64 holds the bracket in functioning position.

- In Figure 14 thebracketfl is slotted at it to receive a bolt 61 whichlimits the left hand movement of the bracket to prevent its disassemblyfrom the side frame. Bolts it are inserted through flanges t9 and II tohold the bracket in functioning position.

In Figure 15 the bracket II has its inner end it turned downwardly andbolted to the frame side wall ll.

,In Figure 16 bracket II has a single upstanding ear Ii receivablebetween two upright lugs 82 on the side frame wall It. A horizontallydisposed pin 84 holds the bracket in functioning position.

Each of these forms embodies one or more features which may be foundadvantageous for one reason or another, according to the particularconditions encountered, and those working in the art will likely makeother variations in the details of the structure without departing fromthe spirit of the invention, andthe exclusive use of such modificationsas come within the scope of the invention is contemplated.

What is claimed is:

1. In a railway truck, wheels, a side frame, a brake beam, and a supportfor said brake beam comprising a bracket pivoted to said side frame andmovable on its pivot into and out of functioning position in which itunderlies a head on said brake beam and thereby supporting the beam andhaving its head engaging surface disposed at an angle to the horizontalto maintain the desired angular relationbetween the brake beam and theadjacent wheel during the application and release of the brake.

2. In a railway truck, wheels, a side frame having the usual top, bottomand upright elements forming an opening in said frame between each ofsaid upright elements and the adjacent wheel, a brake beam, and a devicefor supporting said beam comprising a bracket mounted on said side frameadjacent the end of the beam and extending inwardly from said side frameand shiftable on its mounting into and out'of functioning position, anda detachable element for securing said bracket in place, said elementbeing accessible of thebrake beam includes an upright wall extendinglongitudinally of the truck, and the beam supporting bracket projectsthrough. said wall 7 and is secured at the side of said wall facing awayfrom the beam.

4. A structure as described in claim' 2 in which the portion of the sideframe adjacent the end of the brake beam includes an upright wallextending longitudinally of the truck, and the beam supporting bracketprojects through said wall and is pivoted to the side frame by a pinseated in said side frame at the side of said wall facing away from thebeam.

5. In a railway truck, wheels, a brake beam therefor, a side frameincluding an upright wall extending longitudinally of the truck adjacentto the end of said brake beam, and a support for said beam slidable onsaid wall transversely of the truck into and out of functioningposition.

\ the sole support for the adjacent end of the brake beam, said member,at one end of its sliding movement, providing for the dropping andremoval of the beam from the truck.

7. In a railway truck, wheels, a brake beam therefor comprising acompression member, brake heads seated thereon, a strut, a tensionmember extending over said strut andv through said heads, and nutsthreaded on the ends of said tension member and seated on the outerfacesof said heads, and a side frame having brackets engaging downwardlyand upwardly facing elements on said heads forsupporting and guiding thebeam, said brackets being spaced apart to clear the correspondingtension member nut, at least one of said brackets being movable on saidside frame away from said beam to provide for the dropping of-the latterwhen it is to be removed from the truck.

8. In a railway truck, wheels. side frames at opposite sides of thetruck, a brake beam extending between said side frames, one of said sideframes having integral means for supporting and guiding the adjacent endof said beam, and the other of said side frames having a' bracketmovably mounted thereon to shift into a position beneath the adjacentend of said brake beam to support and guide the same in its movementtowards and away from said wheels, or to shift into a. more remoteposition to, providefor the dropping of the adjacent end of the beam andthe subse quent movement of the beam lengthwise and away=from said meansto remove the beam from the truck.

9. In a railway truck, wheels, 8. side frame, a brake beam with headsand shoes, a device movably mounted on said side frame to shift into andout of a functioning position in which it underlies a portion-of one ofsaid heads and extends longitudinally of the truck to guide the beam asits shoes are applied to the wheels, an element for holding said devicein functioning position, and yielding means compressed between saidframe and device when said element is in place to cushion play betweenthe assembled parts.

10. In a railway truck, wheels, a side frame including an upright webextending longitudinally of the truck, a brake beam movable to and fromsaid wheels, and a device for supporting said beam during such movementand comprising a member mounted on said web at the side thereof facingoutwardly of the truck, said member projecting through said web toengage said beam, said member beihg retractable through said web,without being disassembled from the side frame, to facilitate droppingof the adjacent end of the brake beam when the latter is to be removedfrom the truck. v

11. A structure as described in claim- 10 in which the beam supportingmember is pivoted on the side frame web and is movable on its pivotthrough said web into and out of functioning position, there beingreleasable means for holding said member in functioning position.

12. In a railway truck, wheels, a side frame, a brake beam extendingtransversely of the truck with an end portion projecting into the spacebetween the vertical planes of the opposing faces of said frame and theadjacent wheel, a member mounted on said side frame and movable thereon,

portion, and readily detachable means for holding said member in saidposition.

13. A truck structure as described in claim 12 in which the beam and thesupporting member have co-acting faces inclined to the verticallongitudinally of the truck to maintain the desired angular relationbetween the beam and the adjacent wheel in its movement to and from thewheel as the brakes are applied and released.

14. A truck structure as described in claim 12 which includes a .pivotelement maintaining the assembly of'the side frame and the beamsupporting member, and the readily detachable means cocperateswith saidpivot element to support the device in functioning position.

15. In a railway truck, wheels, a side frame, a brake beam, a membermounted on said side frame opposite to the end of the beam and formingan individual support and guide for'the end of the beam in its movementto and from the wheels, the mounting of said member on the frameincluding a pivot element, the axis of which is disposed longitudinallyof the truck, said member being movable about said element upwardly intofunctioning position and downwardly into a position in' which it clearsthe adjacent end of the holding said member in functioning position.

, EDWIN G. BUBSE.

